Internal IT support for a government agency here: there are times when I wish I could "fire" some customers, but it's not really possible. On the other hand, be

Internal IT support for a government agency here: there are times when I wish I could "fire" some customers, but it's not really possible. On the other hand, being part of the same organisation means that I can be (and have been) quite free with communication to the effect of: "That email tone is not appropriate. We are colleagues in the same organisation with our own set of priorities and demands, and we require to be treated with the same respect as you would."